i went last year and we also had the ticket which allows 1 free child with each paying adult but it was £11 per adult and £8 per child when we went so we had to pay £22 for us two. Personlally i wouldnt rate it after youve seen the first couiple of tanks you get bored even the kids did, i think you would have a better time if you went to drayton manor as they have the zoo and rides so its a fun day for everyone